Pipe-vise



(No Model.)

W. VANDERMAN.

PIPE VISE.

Patented Oct. 18, 1887.

1 9i [M as a c a 51' w an '1 10 7,

FFIQE:

VILLIAM VANDERMAN, OF WILLIMANTIC, CONNECTICUT.

PIPE-VISE.

SPECIFICATION forming part of Letters Patent No. 371,805, dated Qctober18, 1887.

Application filed August 18, 1887. Serial No. 247.230.

To-aZZ whom it may concern:

Be it known that I, WILLIAM VANDERMAN, a citizen of the United States,residing at \Villimantic, in the county of Windham and State ofConnecticut, have invented certain new and useful Improvements inPipe-Vises, which improvements are fully set forth and described in thefollowing specification, reference being had to the accompanying sheetof drawings, in which- Figure 1 is a front elevation of a vise embodyingmy improvements, and Fig. 2 a side elevation of the same. Fig. 3 is acrosssection on line 2 z of Fig. 1, and Fig. 4 a similar View on lineas.

My improvements relate to Vises for clamping tubing. during the act ofcutting off or threading the same; and said improvements consist, first,of a spring-pressed latch for interlocking the two principal sections ofa hinged vise, and, second, of a new form of crosshead for supportingthe upper or movable jaws. By means of these improvements I am able tosimplify somewhat the construction and to add to the convenience of thevise.

Aside from the changes above noted, the general construction of the viseshown in the an- This yoke is drilled and tapped from its upper curvedend to receive a screw, d, provided with an operating-handle, d. Thelower end of screw (1 is attached, in a manner hereinafter explained, toa two-part cross-head, e e, which travels upward or downward with saidscrew,

its ends being shaped to fit and slide on the limbs c 0, abovementioned.

On the outer side of limb c are integral lugs f, in which is hung alever, 9, whose lower end, h, is shaped as a hook to engage andinterlock with a corresponding hook, h, on projection b. The upper endof lever g is of a shape that can (No model.)

be conveniently grasped to operate it, and is held normally away fromlimb c by a spring, 2'.

The lower end of screw (:5 is grooved annularly to leave a head, it, andthe companion y sections 6 e of the crosshead are chambered or cherriedout to inclose said head, as shown in the sectional view, Fig. 4, thetwo sections of said cross-head being then securely clamped together byscrews or bolts m. The lower side of the cross'head is also chambered toreceive the upper pair of jaws, n it, said jaws being locked in positionby pins or screws 0.

The lower jaws, q q, rest in and on the chambered base a, and areretained in place by screws 8.

When it is desired to use the vise, latch g is thrown out of lockingengagement with hook h, and yoke c c is swung open, carrying with frameshave been commonly used heretofore,

some of which have been provided with links on one section arranged tohook over a projecting lug on the companion section. When hung to theupper section and operated by gravity alone, the rusting or gumming upof such links has prevented their working satisfactorily. My latch,being actuated by the spring 71, is held in constant locking engagementwith hook h, finds its place automatically as the yoke is swung to itsclosed position, and can be released only by considerable pressure onthe upper or handle end, exerted against the force of spring 6.

Having described my invention, I claim* 1. In a pipe-vise, incombination with a hinged two-part frame, a springactuated latch forinterlocking said parts, substantially as herein specified.

2. In combination with the yoke of a pipevise, a screw verticallymovable therein, having its lower end headed, as described, and across-head formed of two companion sections cupped to inclose saidscrew-head, said cross- ICO head sections being clamped together byscrews or bolts, substantially as and for the object specified.

3. In combination with the yoke of a pipevise, a screw verticallymovable therein, having its lower end headed, as described, and across-head formed of two companion sections cupped to inclose saidscrew-head, chambered WVILLIAM VANDERMAN.

Witnesses:

J OHN B. FLYNN, FRANK H. ALLEN,

